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Product Comparison

Eargo 7 vs Phonak Sphere Infinio

Side-by-side HearAdvisor lab results with SoundGrades, expert pick badges, and the same visualizations we use in product reviews.

Uses Official HearAdvisor Lab Data
Eargo 7 Hero
EargoSoundGrade B

Eargo 7

The Eargo 7 is a premium-priced OTC hearing aid at $2,550, featuring an invisible-in-ear design with rechargeable batteries. In HearAdvisor's lab testing, it earned a B grade with a SoundScore of 3.5/5, placing it in the top 57% of the OTC hearing aid category. Speech performance in quiet environments is a strength for the Eargo 7, scoring 3.1/5—0.33 points above the category average. Own-voice comfort also exceeds the category average by 0.39 points, though at 2.9/5 it remains mixed in absolute terms. However, speech understanding in noisy environments presents a limitation, scoring 1.0/5, which falls 0.44 points below the category average. A significant drawback is the complete absence of music streaming capability, scoring 0.0/5—nearly 2 points below the category average. Feedback handling is solid at 3.8/5 in absolute terms, though it falls 0.74 points below the category average for OTC devices. The Eargo 7 may appeal to users who prioritize a discreet, nearly invisible form factor and primarily need assistance in quieter listening situations. However, consumers seeking strong noise performance or music streaming should be aware of these limitations, particularly given the premium price point. Several alternatives at lower price points achieve higher overall scores in our testing.

Expert Choice
Expert
Choice
Hero Image
PhonakSoundGrade A

Phonak Sphere Infinio

The Phonak Sphere Infinio is a premium prescription behind-the-ear hearing aid released in 2024, priced at $4,898. In HearAdvisor's lab testing, it achieved a SoundScore of 5.0/5 and an A grade, ranking #1 among 36 prescription hearing aids tested. This device delivers exceptional speech performance, particularly in challenging listening environments. Speech in noise scored an excellent 4.7/5, measuring 2.74 points above the category average—a substantial margin that sets it apart from competitors. Speech in quiet also performed strongly at 4.5/5, sitting 1.15 points above average. Music streaming earned a strong 4.0/5, exceeding the category average by 1.36 points. The Sphere Infinio does show some trade-offs. Feedback handling scored a solid 3.6/5 in absolute terms, though this falls 1.11 points below the category average of 4.71/5. Own-voice comfort scored a mixed 2.3/5, slightly below the category average. These are areas where some competing premium devices perform better. This hearing aid is best suited for those who prioritize speech clarity, especially in noisy environments like restaurants or social gatherings. The behind-the-ear style offers rechargeable batteries and streaming compatibility with both iPhone and Android devices. Among premium-priced competitors like the Oticon Intent (4.85/5) and Oticon Real (4.75/5), the Sphere Infinio leads in overall sound performance, earning HearAdvisor's Expert's Choice Award for 2024 and 2023.

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Performance metrics

Scale 1-5 (Tuned)

Lab metric by fit

Scale 1-5 (Tuned)

Speech in quietNew
Eargo 73.1
Phonak Sphere Infinio4.5
Speech in noiseNew
Eargo 71.0
Phonak Sphere Infinio4.7
Own voice
Eargo 72.9
Phonak Sphere Infinio2.3
Feedback handling
Eargo 73.8
Phonak Sphere Infinio3.6
Music streaming
Eargo 70.0
Phonak Sphere Infinio4.0
Overall fit score
Eargo 73.4
Phonak Sphere Infinio5.2

Speech level

Adjust input dB (Tuned)

Amplification (REIG)

Insertion gain at 65 dB (Tuned)

Fitting configuration for tuned fit

Eargo 7Phonak Sphere Infinio
Ear CouplingSleeve Closed
Ear CouplingClosed Vented Dome
Receiver
ReceiverMedium-power
Fitting Formula
Fitting FormulaAdaptive Phonak Digital 3.0 (Manufacturer proprietary targets)
Listening Program
Listening ProgramAutoSense OS (Automatic)
Volume Setting
Volume SettingAdjusted to match NAL-NL2 targets at 55, 65, and 75 dB SPL
Software Version
Software Versionv10.0.0.2318
Tuning Adjustments
Tuning AdjustmentsProgrammed to N3 audiogram, Feedback calibrated, Long-Term Experienced User, Other settings at manufacturer defaults
Notes
Notesn/a